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What is the correct answer?


Topic: Horner's Syndrome
Subject: Medicine
A 66-year-old diabetic man presents with constriction of the pupil, drooping of the upper lid, and anhidrosis on the left. Which one of the following nerves is most likely involved?

A. Oculomotor

B. Sympathetic

C. Trochlear

D. Trigeminal

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